CVE-2020-15669
Published: 1 October 2020
When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox-esr Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(68.12.0esr-1)
|
|
| xenial |
Does not exist
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Released
(1:78.8.1+build1-0ubuntu0.18.04.1)
|
| focal |
Released
(78.7.1+build1-0ubuntu0.20.04.1)
|
|
| groovy |
Not vulnerable
(1:78.3.2+build1-0ubuntu1)
|
|
| hirsute |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
| impish |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
| jammy |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
| kinetic |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
| lunar |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(68.12)
|
|
| xenial |
Ignored
(end of standard support, was needed)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |